US2914864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Worm gear drive
Assignee: Rice Barton Corp
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Filing: 1956-01-24
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Granted: 1959-12-01
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Expires: 1976-01-24
Abstract
No abstract record available.
Inventors
- 👤 Everett W Clem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/14; D; D21; D21F; D21F7/00; D21F7/02; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; F16H57/00; F16H57/02; F16H57/021; F16H57/022; F16H57/039; F16H2057/02039; F16H2057/02069; F16H57/023; F16H2057/0235; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |