US3510282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naphthenyl-acylated polyamines and uses
Assignee: Baker Petrolite LLC
•
Filing: 1967-08-11
•
Granted: 1970-05-05
•
Expires: 1987-08-11
Abstract
No abstract record available.
Inventors
- 👤 William E Seffens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:04
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10L1/232
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3337472A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |