US3516944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon nitrogen backbone chain copolymers as gelling agents
Assignee: Honeywell International Inc
•
Filing: 1967-01-04
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Granted: 1970-06-23
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Expires: 1987-01-04
Abstract
No abstract record available.
Inventors
- 👤 Morton H Litt
- 👤 Sorrell Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C06; C06B; C06B23/00; C06B23/001; C09; C09D; C09D9/00; C10; C10L; C10L7/00; C10L7/02; C10M; C10M5/00; C08J2379/00; C08J2379/02; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/08; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/404; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2620345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |