US1687347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp
Assignee: Individual
•
Filing: 1925-08-12
•
Granted: 1928-10-09
•
Expires: 1945-08-12
Abstract
No abstract record available.
Inventors
- 👤 Walter W Moru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/60; F21S41/65; F21S41/657; F21S41/50; F21S41/55
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) | 1931-10-09 | 1932-04-09 | 1932-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-10-09 | 1936-04-09 | 1936-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-10-09 | 1940-04-09 | 1940-10-09 | $7700.00 | Window Closed / Lapsed |