US3393312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable flashlight
Assignee: Individual
•
Filing: 1966-07-18
•
Granted: 1968-07-16
•
Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Frank L Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/32; F21L; F21L4/00; F21L4/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1889978A
Cited
US2071557A
Cited
US2648762A
Cited
US2739311A
Cited
US2886664A
Cited
US3310673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |