Patent US3136801A successfully refreshed from Google Patents.
US3136801A
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Phosphorus-containing carbamic composition
Assignee: Lubrizol Corp
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Filing: 1961-10-12
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Granted: 1964-06-09
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Hopkins Thomas Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:13
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/36; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C09D5/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A PHOSPHORUS-CONTAINING CARBAMIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
14 words
A PHOSPHORUS-CONTAINING CARBAMIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
DE952712C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |