US2103122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated spring
Assignee: HOESCH KOLNNEUESSEN AG fur BER
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Filing: 1935-06-27
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Granted: 1937-12-21
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Expires: 1955-06-27
Abstract
No abstract record available.
Inventors
- 👤 Stark Helmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/18; F16F1/185; B; B60; B60G; B60G2206/00; B60G2206/01; B60G2206/40; B60G2206/42; B60G2206/428; B60G2206/80; B60G2206/81; B60G2206/8109
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) | 1940-12-20 | 1941-06-21 | 1941-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-20 | 1945-06-21 | 1945-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-20 | 1949-06-21 | 1949-12-21 | $7700.00 | Window Closed / Lapsed |