Patent US1387743A successfully refreshed from Google Patents.
US1387743A
Expired / Lapsed
US
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Spring structure
Assignee: Reynolds Spring Co
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Filing: 1921-01-27
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Granted: 1921-08-16
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Expires: 1941-01-27
Abstract
No abstract record available.
Inventors
- 👤 Desire H Van Hove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:58
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058; B60N2/7064
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) | 1924-08-15 | 1925-02-14 | 1925-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-15 | 1929-02-14 | 1929-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-15 | 1933-02-14 | 1933-08-16 | $7700.00 | Window Closed / Lapsed |