Patent US2986154A successfully refreshed from Google Patents.
US2986154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
pintz
Assignee: —
•
Filing: —
•
Granted: 1961-05-30
•
Expires: 1978-05-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:38
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/008; C02F1/52; C02F2209/00; C02F2209/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1002974A
Cited
US1497701A
Cited
US1998478A
Cited
US2625933A
Cited
US2758716A
Cited
US2792912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |