US2348656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Jack and Heintz Inc
•
Filing: 1943-02-18
•
Granted: 1944-05-09
•
Expires: 1963-02-18
Abstract
No abstract record available.
Inventors
- 👤 Philip F Scofield
- 👤 David J Conant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:45
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/06; H01H35/10; H01H71/00; H01H71/10; H01H71/50; H01H71/52
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) | 1947-05-09 | 1947-11-08 | 1948-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-09 | 1951-11-08 | 1952-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-09 | 1955-11-08 | 1956-05-09 | $7700.00 | Window Closed / Lapsed |