Patent US2750806A successfully refreshed from Google Patents.
US2750806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hobbs
Assignee: —
•
Filing: —
•
Granted: 1956-06-19
•
Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:48
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/038; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/14; F16H57/027; F16H2057/02017; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49762; Y10T408/00; Y10T408/65; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19665; Y10T74/21; Y10T74/2186
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) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |