US2362175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piped light full-beam electric lamp
Assignee: Individual
•
Filing: 1943-03-25
•
Granted: 1944-11-07
•
Expires: 1963-03-25
Abstract
No abstract record available.
Inventors
- 👤 Swanson Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:50
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298; G02B6/0001; G02B6/0005; G02B6/0006; H; H01; H01K; H01K1/00; H01K1/28; H01K1/30; H01K7/00
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) | 1947-11-07 | 1948-05-08 | 1948-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-07 | 1952-05-08 | 1952-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-07 | 1956-05-08 | 1956-11-07 | $7700.00 | Window Closed / Lapsed |