Patent US2974991A successfully refreshed from Google Patents.
US2974991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide fastener operating device
Assignee: Individual
•
Filing: 1957-08-27
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Granted: 1961-03-14
•
Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 Isidore E Gerrick
- 👤 West Central Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
A; A47; A47G; A47G25/00; A47G25/90; A47G25/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US109563A
Cited
US297665A
Cited
US490806A
Cited
US769336A
Cited
US1965151A
Cited
US2811763A
Cited
US2835952A
Cited
US2887752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |