US2757935A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1954-05-13
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Granted: 1956-08-07
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Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Sofia Antonio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:02
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/26; B62B1/266; B62B1/10; B62B1/12; B62B1/125; B62B1/14; B62B2202/00; B62B2202/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |