US2951393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple control mechanism
Assignee: Allis Chalmers Corp
•
Filing: 1957-11-18
•
Granted: 1960-09-06
•
Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Harry J Schroeder
- 👤 Robert J Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:55
CPC Classifications
G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/2014; Y10T74/20159; Y10T74/20396
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US889897A
Cited
US1073775A
Cited
US1358730A
Cited
US1843272A
Cited
US2219601A
Cited
FR1009222A
Cited
US2624212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |