US2707220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shunts for switch blade hinges or the like
Assignee: AB Chance Co
•
Filing: 1953-07-15
•
Granted: 1955-04-26
•
Expires: 1973-07-15
Abstract
No abstract record available.
Inventors
- 👤 William L Hollander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:00
CPC Classifications
H; H01; H01H; H01H31/00; H01H31/26; H01H31/28; H01H2031/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2521484A
Cited
US2610276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |