US2448696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control unit
Assignee: ARENS CONTROLS Inc
•
Filing: 1943-05-17
•
Granted: 1948-09-07
•
Expires: 1963-05-17
Abstract
No abstract record available.
Inventors
- 👤 Charles A Arens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:00
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/21; B63H21/213; F; F16; F16C; F16C1/00; F16C1/10; F16C1/12; F16C1/18; F16C2326/00; F16C2326/30; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR746304A
Cited
US1076870A
Cited
US1100482A
Cited
GB191410650A
Cited
GB191410651A
Cited
US1223316A
Cited
GB293915A
Cited
DE485925C
Cited
GB353542A
Cited
US2071383A
Cited
US2326796A
Cited
US2358094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |