Patent US2863323A successfully refreshed from Google Patents.
US2863323A
Expired / Lapsed
US
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Sprocket tooth and assembly
Assignee: Wald Indusries Inc
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Filing: 1957-09-04
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Granted: 1958-12-09
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Expires: 1977-09-04
Abstract
No abstract record available.
Inventors
- 👤 William R Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:16
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/30; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19963
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |