US1979780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draw works
Assignee: Individual
•
Filing: 1933-07-07
•
Granted: 1934-11-06
•
Expires: 1953-07-07
Abstract
No abstract record available.
Inventors
- 👤 Harry L Turney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:42
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/008; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19219; Y10T74/19377; Y10T74/19386; Y10T74/194; Y10T74/19414; Y10T74/1947; Y10T74/19474; Y10T74/19479
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-11-05 | 1938-05-07 | 1938-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-05 | 1942-05-07 | 1942-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-05 | 1946-05-07 | 1946-11-06 | $7700.00 | Window Closed / Lapsed |