Patent US1900377A successfully refreshed from Google Patents.
US1900377A
Expired / Lapsed
US
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Ornamental chain
Assignee: EDWIN F M SPEIDEL
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Filing: 1930-01-28
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Granted: 1933-03-07
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Expires: 1950-01-28
Abstract
No abstract record available.
Inventors
- 👤 Karl C Augenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:43
CPC Classifications
A; A44; A44C; A44C5/00; A44C5/02; A44C5/10; A44C5/102
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) | 1936-03-06 | 1936-09-05 | 1937-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-06 | 1940-09-05 | 1941-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-06 | 1944-09-05 | 1945-03-07 | $7700.00 | Window Closed / Lapsed |