Patent US2812350A successfully refreshed from Google Patents.
US2812350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(5, 5, 7, 7-tetramethyl-2-octenyl) trialkyl ammonium salts
Assignee: Rohm and Haas Co
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Filing: 1955-08-29
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Granted: 1957-11-05
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Expires: 1975-08-29
Abstract
No abstract record available.
Inventors
- 👤 Warren D Niederhauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:06
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/037; A; A01; A01N; A01N33/00; A01N33/02; A01N33/12; C07D295/04; C07D295/08; C07D295/084; C07D295/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A COMPOSITION OF MATTER COMPRISING A COMPOUND OF FORMULA 1:
Claim 2
Dependent Claim
10 words
A COMPOSITION OF MATTER COMPRISING A COMPOUND OF FORMULA 1:
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |