US1477527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact spring
Assignee: Individual
•
Filing: 1923-04-20
•
Granted: 1923-12-11
•
Expires: 1943-04-20
Abstract
No abstract record available.
Inventors
- 👤 Raettig Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:25
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/42; H01R; H01R13/00; H01R13/02; H01R13/10; H01R13/11; H01R13/115; H01R4/00; H01R4/28; H01R4/30; H01R4/36
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) | 1926-12-10 | 1927-06-11 | 1927-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-12-10 | 1931-06-11 | 1931-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-12-10 | 1935-06-11 | 1935-12-11 | $7700.00 | Window Closed / Lapsed |