US2963626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control systems and apparatus
Assignee: Individual
•
Filing: 1957-09-10
•
Granted: 1960-12-06
•
Expires: 1977-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert Du Val
- 👤 Ralph R Batcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:37
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1810732A
Cited
US2151433A
Cited
US2568535A
Cited
US2480568A
Cited
US2467727A
Cited
US2613287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |