Patent US2971256A successfully refreshed from Google Patents.
US2971256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fasteners for conveyor belts and the like
Assignee: Individual
•
Filing: 1958-10-13
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Granted: 1961-02-14
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Expires: 1978-10-13
Abstract
No abstract record available.
Inventors
- 👤 Leflon Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:06
CPC Classifications
F; F16; F16G; F16G3/00; F16G3/02; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1608; Y10T24/1632; Y10T29/00; Y10T29/49; Y10T29/49787; Y10T29/49789; Y10T29/4979
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1662639A
Cited
US1975862A
Cited
US2219165A
Cited
US2252305A
Cited
US2242967A
Cited
US2277758A
Cited
US2468503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |