US2069950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical lamp
Assignee: Individual
•
Filing: 1933-11-02
•
Granted: 1937-02-09
•
Expires: 1953-11-02
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Greppin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/005; F21S6/006; F21V; F21V17/00; F21V17/02; F21V19/00; F21V19/02; F21V21/00; F21V21/14; F21V21/22; F21V29/00; F21V29/50; F21V29/70; F21V29/83; F21V7/00; F21V7/22; F21V7/24; F21V9/00; F21V9/04; F21W; F21W2131/00; F21W2131/20; F21W2131/205
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) | 1940-02-09 | 1940-08-10 | 1941-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-09 | 1944-08-10 | 1945-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-09 | 1948-08-10 | 1949-02-09 | $7700.00 | Window Closed / Lapsed |