Patent US3828770A successfully refreshed from Google Patents.
Patent US3622767A successfully refreshed from Google Patents.
US644844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switchboard.
Assignee: Individual
•
Filing: 1899-11-18
•
Granted: 1900-03-06
•
Expires: 1919-11-18
Abstract
No abstract record available.
Inventors
- 👤 Marty T Bunnell
- 👤 Jesse H Bunnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:43
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/20; H02B1/207
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1903-03-06 | 1903-09-05 | 1904-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-03-06 | 1907-09-05 | 1908-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-03-06 | 1911-09-05 | 1912-03-06 | $7700.00 | Window Closed / Lapsed |