US2877658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensated worm, worm gear device
Assignee: Nachi Machining Technology Co
•
Filing: 1957-02-11
•
Granted: 1959-03-17
•
Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Russel W Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; F16H57/00; F16H57/02; F16H57/021; F16H2057/0213; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19555; Y10T74/19623; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/19842
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1234771A
Cited
US2098132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |