US3114507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated spirit level
Assignee: Individual
•
Filing: 1962-03-05
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Granted: 1963-12-17
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Dommer Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
IN A SPIRIT LEVEL HAVING AN ELONGATED FRAME INCLUDING LONGITUDINAL SIDE MEMBERS SPACED APART TO FORM OPENINGS BETWEEN THEM, SAID FRAME ALSO HAVING HUB-SHAPED PARTS CONNECTING SAID SIDE MEMBERS AND FORMING SIGHT OPENINGS CONTAINING BUBBLE TUBES, SAID SIDE MEMBERS HAVING LONGITUDINAL INWARDLY EXTENDING WEBS BETWEEN ADJACENT HUB-SHAPED PARTS, THAT IMPROVEMENT WHICH INCLUDES A PAIR OF SLIDES BIFURCATED TO STRADDLE SAID WEBS OF OPPOSIDE SIDE MEMBERS AND SLIDABLE LENGTHWISE THEREOF, GRIPPING MEMBERS PIVOTALLY MOUNTED ON THE INNER FACES OF SAID SLIDES, AND A FLASHLIGHT HELD BY SAID GRIPPING MEMBERS
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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |