Patent US2991489A successfully refreshed from Google Patents.
US2991489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life saving device
Assignee: Individual
•
Filing: 1959-06-04
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Granted: 1961-07-11
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Expires: 1979-06-04
Abstract
No abstract record available.
Inventors
- 👤 Richard A Kubach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:12
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/06; B63C9/02; B63C2009/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1112221A
Cited
US1223515A
Cited
US1276826A
Cited
US1296668A
Cited
GB129076A
Cited
US1795255A
Cited
US2129742A
Cited
US2262219A
Cited
FR1053385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |