US2983974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hook fastener for transmission or conveyor belts
Assignee: Mastabar Mining Equipment Co Ltd
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Filing: 1959-05-04
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Granted: 1961-05-16
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Expires: 1979-05-04
Abstract
No abstract record available.
Inventors
- 👤 Tebb Bernard
- 👤 Perry Clarence Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:14
CPC Classifications
B; B21; B21G; B21G3/00; C; C21; C21D; C21D1/00; C21D1/34; C21D1/40; C21D9/00; C21D9/26; F; F16; F16G; F16G3/00; F16G3/003; F16G3/02; F16G3/04; Y; Y10; Y10S; Y10S148/00; Y10S148/902; Y10S411/00; Y10S411/92; Y10T; Y10T24/00; Y10T24/16; Y10T24/1608; Y10T24/1636; Y10T24/1668
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) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |