US1795294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making light-diffusing panels
Assignee: MUTUAL SUNSET LAMP Manufacturing CO Inc
•
Filing: 1929-04-09
•
Granted: 1931-03-10
•
Expires: 1949-04-09
Abstract
No abstract record available.
Inventors
- 👤 Collins Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
F; F21; F21V; F21V1/00; Y; Y10; Y10S; Y10S160/00; Y10S160/07; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/1359
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-03-09 | 1934-09-08 | 1935-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-09 | 1938-09-08 | 1939-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-09 | 1942-09-08 | 1943-03-10 | $7700.00 | Window Closed / Lapsed |