Patent US1464168A successfully refreshed from Google Patents.
US1464168A
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Antenna system
Assignee: AT&T Inc
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Filing: 1917-07-09
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Granted: 1923-08-07
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Expires: 1937-07-09
Abstract
No abstract record available.
Inventors
- 👤 William T Booth
- 👤 Walter A Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:34
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/30; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4481; B66; B66D; B66D1/00; B66D1/02; B66D1/12; B65H2701/00; B65H2701/30; B65H2701/36; B65H2701/365; B66D2700/00; B66D2700/01; B66D2700/0125; B66D2700/0141
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) | 1926-08-06 | 1927-02-05 | 1927-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-08-06 | 1931-02-05 | 1931-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-08-06 | 1935-02-05 | 1935-08-07 | $7700.00 | Window Closed / Lapsed |