Patent US2841335A successfully refreshed from Google Patents.
US2841335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter controlled means
Assignee: General Telephone Laboratories Inc
•
Filing: 1952-11-05
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Granted: 1958-07-01
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Expires: 1972-11-05
Abstract
No abstract record available.
Inventors
- 👤 Sengebusch Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:24
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/27; G06M1/276; G08; G08B; G08B5/00; G08B5/22; G08B5/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2487469A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |