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United States Patent and Trademark Office
1338343 – April 27, 1920 – Process And Apparatus For The Production of Intense Artificial Clouds, Fogs, or Mists
1619183 – March 1, 1927 – Process of Producing Smoke Clouds From Moving Aircraft
1631753 – June 7, 1927 – Electric Heater – Referenced in 3990987
1665267 – April 10, 1928 – Process of Producing Artificial Fogs
1892132 – December 27, 1932 – Atomizing Attachment For Airplane Engine Exhausts
1928963 – October 3, 1933 – Electrical System And Method
1957075 – May 1, 1934 – Airplane Spray Equipment
2097581 – November 2, 1937 – Electric Stream Generator – Referenced in 3990987
2409201 – October 15, 1946 – Smoke Producing Mixture
2476171 – July 18, 1945 – Smoke Screen Generator
2480967 – September 6, 1949 – Aerial Discharge Device
2550324 – April 24, 1951 – Process For Controlling Weather
2510867 – October 9, 1951 – Method of Crystal Formation and Precipitation
2582678 – June 15, 1952 – Material Disseminating Apparatus For Airplanes
2591988 – April 8, 1952 – Production of TiO2 Pigments – Referenced in 3899144
2614083 – October 14, 1952 – Metal Chloride Screening Smoke Mixture
2633455 – March 31, 1953 – Smoke Generator
2688069 – August 31, 1954 – Steam Generator – Referenced in 3990987
2721495 – October 25, 1955 – Method And Apparatus For Detecting Minute Crystal Forming Particles Suspended in a Gaseous Atmosphere
2730402 – January 10, 1956 – Controllable Dispersal Device
2801322 – July 30, 1957 – Decomposition Chamber for Monopropellant Fuel – Referenced in 3990987
2881335 – April 7, 1959 – Generation of Electrical Fields
2908442 – October 13, 1959 – Method For Dispersing Natural Atmospheric Fogs And Clouds
2986360 – May 30, 1962 – Aerial Insecticide Dusting Device
2963975 – December 13, 1960 – Cloud Seeding Carbon Dioxide Bullet
3126155 – March 24, 1964 – Silver Iodide Cloud Seeding Generator – Referenced in 3990987
3127107 – March 31, 1964 – Generation of Ice-Nucleating Crystals
3131131 – April 28, 1964 – Electrostatic Mixing in Microbial Conversions
3174150 – March 16, 1965 – Self-Focusing Antenna System
3234357 – February 8, 1966 – Electrically Heated Smoke Producing Device
3274035 – September 20, 1966 – Metallic Composition For Production of Hydroscopic Smoke
3300721 – January 24, 1967 – Means For Communication Through a Layer of Ionized Gases
3313487 – April 11, 1967 – Cloud Seeding Apparatus
3338476 – August 29, 1967 – Heating Device For Use With Aerosol Containers – Referenced in 3990987
3410489 – November 12, 1968 – Automatically Adjustable Airfoil Spray System With Pump
3429507 – February 25, 1969 – Rainmaker
3432208 – November 7, 1967 – Fluidized Particle Dispenser
3441214 – April 29, 1969 – Method And Apparatus For Seeding Clouds
3445844 – May 20, 1969 – Trapped Electromagnetic Radiation Communications System
3456880 – July 22, 1969 – Method Of Producing Precipitation From The Atmosphere
3518670 June 30, 1970 – Artificial Ion Cloud
3534906 – October 20, 1970 – Control of Atmospheric Particles
3545677 – December 8, 1970 – Method of Cloud Seeding
3564253 – February 16, 1971 – System And Method For Irradiation Of Planet Surface Areas
Originally posted by jjkenobi
Did the sky above me suddenly become an airplane highway for 24 hours where every contrail lasts for a day?
Originally posted by jjkenobi
The weather has nothing to do with me being in the middle of nowhere and suddenly having 30 planes (or one plane 30 times) fly over in one day.
Originally posted by dereks
Originally posted by jjkenobi
The weather has nothing to do with me being in the middle of nowhere and suddenly having 30 planes (or one plane 30 times) fly over in one day.
Yes it does actually, you will find that everyday close to that amount of aircraft fly over you, just you do not see their contrails due to the weather