US3035250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective calling system
Assignee: ITT Bell and Gossett Inc
•
Filing: 1956-08-13
•
Granted: 1962-05-15
•
Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 James D Durkee
- 👤 Clarence H Stewart
- 👤 William E Peugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/18; H04W88/185; H04W88/188; G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; H04Q; H04Q5/00; H04Q5/02; H04Q5/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1326727A
Cited
US1476003A
Cited
US1786805A
Cited
US2211020A
Cited
US2398761A
Cited
US2397539A
Cited
US2357925A
Cited
US2513342A
Cited
US2558888A
Cited
US2675544A
Cited
US2523315A
Cited
US2470145A
Cited
US2563127A
Cited
US2538994A
Cited
US2666196A
Cited
US2826638A
Cited
US2739298A
Cited
US2701279A
Cited
US2794068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |