Patent US4440367A successfully refreshed from Google Patents.
US1847653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of resistance units
Assignee: Technidyne Corp
•
Filing: 1928-03-12
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Granted: 1932-03-01
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Expires: 1948-03-12
Abstract
No abstract record available.
Inventors
- 👤 Lester L Jones
- 👤 Joseph A Flanzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:42
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/22; H01C17/232; H01C7/00; H01C7/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-03-01 | 1935-08-31 | 1936-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-01 | 1939-08-31 | 1940-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-01 | 1943-08-31 | 1944-03-01 | $7700.00 | Window Closed / Lapsed |