US3147067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing water evaporation losses in open reservoirs
Assignee: Monsanto Co
•
Filing: 1960-12-05
•
Granted: 1964-09-01
•
Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Ival O Salyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:33
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF REDUCING EVAPORATIVE LOSSES OF WATER IN OPEN RESERVOIRS WHICH COMPRISES SUBSTANTIALLY COVERING THE SURFACE OF THE WATER WITH NON-POROUS, 3-DIMENSIONAL, SOLID PELLETS OF A THERMALLY STABLE, NON-TOXIC, WATER INSOLUBLE, SUBSTANTIALLY WATER IMPERVIOUS, PLASTIC ORGANIC POLYMER WHICH HAS A SPECIFIC GRAVITY OF LESS THAN 1.0, SAID PELLETS HAVING HEAT REFLECTING PIGMENT PARTICLES EMBEDDED THEREIN, HAVING A MINIMUM DIMENSION OF AT LEAST ABOUT 1/16 INCH, AND BEING CHARRACTERIZED BY AN ABSENCE OF GASEOUS VOIDS.
Claim 2
Independent Claim
75 words
THE METHOD OF REDUCING EVAPORATIVE LOSSES OF WATER IN OPEN RESERVOIRS WHICH COMPRISES SUBSTANTIALLY COVERING THE SURFACE OF THE WATER WITH NON-POROUS, 3-DIMENSIONAL, SOLID PELLETS OF A THERMALLY STABLE, NON-TOXIC, WATER INSOLUBLE, SUBSTANTIALLY WATER IMPERVIOUS, PLASTIC ORGANIC POLYMER WHICH HAS A SPECIFIC GRAVITY OF LESS THAN 1.0, SAID PELLETS HAVING HEAT REFLECTING PIGMENT PARTICLES EMBEDDED THEREIN, HAVING A MINIMUM DIMENSION OF AT LEAST ABOUT 1/16 INCH, AND BEING CHARRACTERIZED BY AN ABSENCE OF GASEOUS VOIDS.
References Cited (Backward Citations)
AU1378028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |