US2611459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening means
Assignee: Individual
•
Filing: 1947-05-01
•
Granted: 1952-09-23
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Hammitt
- 👤 Jr Herbert L Birum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:45
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/3605; F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B13/0808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US450127A
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US564251A
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US736586A
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US780810A
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US1168257A
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US1576727A
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US1648927A
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US2011390A
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US2061478A
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FR823539A
Cited
US2161259A
Cited
US2130546A
Cited
US2386386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |