Patent US3098701A successfully refreshed from Google Patents.
US3098701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing water evaporation losses in open reservoirs
Assignee: Monsanto Chemicals Ltd
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Filing: 1960-08-11
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Granted: 1963-07-23
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Expires: 1980-08-11
Abstract
No abstract record available.
Inventors
- 👤 Campbell R Mccullough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE METHOD OF REDUCING EVAPORATIVE LOSSES OF WATER IN OPEN RESERVOIRS WHICH COMPRISES SUBSTANTIALLY COVERNING THE SURFACE OF THE WATER WITH PIECES OF A THIN, SOLID AND FLEXIBLE POLYETHYLENE POLYMER FILM SELECTED FROM THE GROUP CONSISTING OF: HOMOPOLYMERS OF ETHYLENE AND COPOLYMERS OF ETHYLENE AND WHEREIN THE SAID POLYETHYLENE FILM HAS BEEN RENDERED HYDROPHILIC.
Claim 2
Independent Claim
54 words
THE METHOD OF REDUCING EVAPORATIVE LOSSES OF WATER IN OPEN RESERVOIRS WHICH COMPRISES SUBSTANTIALLY COVERNING THE SURFACE OF THE WATER WITH PIECES OF A THIN, SOLID AND FLEXIBLE POLYETHYLENE POLYMER FILM SELECTED FROM THE GROUP CONSISTING OF: HOMOPOLYMERS OF ETHYLENE AND COPOLYMERS OF ETHYLENE AND WHEREIN THE SAID POLYETHYLENE FILM HAS BEEN RENDERED HYDROPHILIC.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |