Patent US2758854A successfully refreshed from Google Patents.
US2758854A
Expired / Lapsed
US
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Journal box seal
Assignee: Individual
•
Filing: 1953-04-14
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Granted: 1956-08-14
•
Expires: 1973-04-14
Abstract
No abstract record available.
Inventors
- 👤 William J Fitzsimmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:14
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/20; B61F15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191324662A
Cited
US1169271A
Cited
US1989110A
Cited
US2105871A
Cited
US2177441A
Cited
FR874527A
Cited
US2371823A
Cited
GB583818A
Cited
US2698194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |