US1685575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: INDIANA LAMP Corp
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Filing: 1927-10-14
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Granted: 1928-09-25
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Expires: 1947-10-14
Abstract
No abstract record available.
Inventors
- 👤 Edgar D Springer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:35
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/16; F21S; F21S41/00; F21S41/20; F21S41/29
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) | 1931-09-25 | 1932-03-26 | 1932-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-09-25 | 1936-03-26 | 1936-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-09-25 | 1940-03-26 | 1940-09-25 | $7700.00 | Window Closed / Lapsed |