US2152834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp
Assignee: United Lens Corp
•
Filing: 1935-07-25
•
Granted: 1939-04-04
•
Expires: 1955-07-25
Abstract
No abstract record available.
Inventors
- 👤 Samuel F Arbuckle
- 👤 Guy H Coulter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:08
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/16; F21S; F21S41/00; F21S41/20; F21S41/29; F21V5/00; F21S41/30; F21S41/39; Y; Y10; Y10T; Y10T292/00; Y10T292/03
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) | 1942-04-03 | 1942-10-03 | 1943-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-03 | 1946-10-03 | 1947-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-03 | 1950-10-03 | 1951-04-04 | $7700.00 | Window Closed / Lapsed |