US2940729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for soil stabilizer polymerization
Assignee: Wyeth Holdings LLC
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Filing: 1957-03-11
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Granted: 1960-06-14
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Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 David H Rakowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; C09K17/48; C09K17/14; C09K17/18; C09K17/20; C09K17/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A PROCESS FOR TREATING AREAS OF SOIL AND SUBTERRANEAN FORMATIONS WHICH COMPRISES APPLYING TO SAID AREAS A COPOLYMERIZABLE MIXTURE COMPRISING (A) A MONOMERIC ALKYLIDENE BISCARYLAMIDE OF THE FORMULA
Claim 2
Dependent Claim
28 words
A PROCESS FOR TREATING AREAS OF SOIL AND SUBTERRANEAN FORMATIONS WHICH COMPRISES APPLYING TO SAID AREAS A COPOLYMERIZABLE MIXTURE COMPRISING (A) A MONOMERIC ALKYLIDENE BISCARYLAMIDE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |