US2552781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic counting arrangement
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1946-08-31
•
Granted: 1951-05-15
•
Expires: 1966-08-31
Abstract
No abstract record available.
Inventors
- 👤 Hadfield Bertram Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2060095A
Cited
US2275016A
Cited
US2402989A
Cited
US2405095A
Cited
US2305625A
Cited
US2289988A
Cited
US2329792A
Cited
US2348016A
Cited
US2456029A
Cited
US2422698A
Cited
US2410156A
Cited
US2384379A
Cited
US2442428A
Cited
US2459181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |