Patent US1711101A successfully refreshed from Google Patents.
US1711101A
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Assignee: AT&T Inc
•
Filing: 1923-08-21
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Granted: 1929-04-30
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Expires: 1943-08-21
Abstract
No abstract record available.
Inventors
- 👤 Roy B Shanck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:48
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/42; Y; Y10; Y10S; Y10S84/00; Y10S84/09
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) | 1932-04-29 | 1932-10-29 | 1933-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-29 | 1936-10-29 | 1937-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-29 | 1940-10-29 | 1941-04-30 | $7700.00 | Window Closed / Lapsed |