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Patent US3151886A successfully refreshed from Google Patents.
US3151886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
grant etal
Assignee: —
•
Filing: —
•
Granted: 1964-10-06
•
Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:28
CPC Classifications
B; B42; B42F; B42F9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735433A
Cited
US1432652A
Cited
US1546829A
Cited
US1655017A
Cited
US2323123A
Cited
US2687901A
Cited
US2602452A
Cited
US2836451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |