US2443357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic lamp
Assignee: MOTORS METAL Manufacturing Co
•
Filing: 1946-01-12
•
Granted: 1948-06-15
•
Expires: 1966-01-12
Abstract
No abstract record available.
Inventors
- 👤 Robert R Mcmath
- 👤 Stephen J Menzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:26
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02; F21K5/023; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32975; Y10T403/32983
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |