Patent US1739641A successfully refreshed from Google Patents.
US1739641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable and adjustable light
Assignee: Individual
•
Filing: 1928-02-18
•
Granted: 1929-12-17
•
Expires: 1948-02-18
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Lessmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:54
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/24; B60Q1/245; F21V; F21V14/00; F21V14/02; F21V14/025; F21V21/00; F21V21/08; F21V21/092; F21V21/0925; F21V21/14; F21V21/30; B60Q2200/00; B60Q2200/30; B60Q2200/32; Y; Y10; Y10T; Y10T279/00; Y10T279/11
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) | 1932-12-16 | 1933-06-17 | 1933-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-12-16 | 1937-06-17 | 1937-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-12-16 | 1941-06-17 | 1941-12-17 | $7700.00 | Window Closed / Lapsed |