Patent US3386305A successfully refreshed from Google Patents.
US3386305A
Expired / Lapsed
US
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Worm gearing
Assignee: Individual
•
Filing: 1966-04-28
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Granted: 1968-06-04
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Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Wildhaber Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:39
CPC Classifications
B; B23; B23F; B23F5/00; B23F5/20; B23F5/202; B23F13/00; B23F13/06; B23F21/00; B23F21/12; B23F21/122; F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; F16H55/00; F16H55/02; F16H55/22; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |