US3511596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing ammonia and methanol from gases
Assignee: Wyeth Holdings LLC
•
Filing: 1965-09-17
•
Granted: 1970-05-12
•
Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Stephen Fred Adler
- 👤 Janis John Keggi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:54
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1767057A
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US1595788A
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US1586327A
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US1864988A
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US2033698A
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US2569092A
Cited
US2945015A
Cited
US2942933A
Cited
US3231516A
Cited
US3324165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |