US2695949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated spirit level
Assignee: JAMES L CUNINGHAM
•
Filing: 1952-01-17
•
Granted: 1954-11-30
•
Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 James H Ashwill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:32
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/32; Y; Y10; Y10S; Y10S33/00; Y10S33/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1617937A
Cited
US2109976A
Cited
US2234982A
Cited
US2198945A
Cited
US2481736A
Cited
US2526206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |