US816847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron-framed distributing-board for telephone-exchanges.
Assignee: Individual
•
Filing: 1903-02-02
•
Granted: 1906-04-03
•
Expires: 1923-02-02
Abstract
No abstract record available.
Inventors
- 👤 Frank B Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:37
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/20; H02B1/207
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) | 1909-04-02 | 1909-10-02 | 1910-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-04-02 | 1913-10-02 | 1914-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-04-02 | 1917-10-02 | 1918-04-03 | $7700.00 | Window Closed / Lapsed |