Patent US774139A successfully refreshed from Google Patents.
US774139A
Expired / Lapsed
US
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Telephone-directory.
Assignee: TELEPHONE APPLIANCE Co
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Filing: 1903-10-22
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Granted: 1904-11-01
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Expires: 1923-10-22
Abstract
No abstract record available.
Inventors
- 👤 Nathan B Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:26
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/21
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) | 1907-11-01 | 1908-05-02 | 1908-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-11-01 | 1912-05-02 | 1912-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-11-01 | 1916-05-02 | 1916-11-01 | $7700.00 | Window Closed / Lapsed |