US2123329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support
Assignee: Individual
•
Filing: 1938-01-21
•
Granted: 1938-07-12
•
Expires: 1958-01-21
Abstract
No abstract record available.
Inventors
- 👤 William J Combs
- 👤 Oscar O Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:31
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14; E; E04; E04H; E04H12/00; E04H12/22; E04H12/2207; E04H12/2215; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32549; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7098; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5027
Claims Analysis
Total Claims: 0
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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) | 1941-07-11 | 1942-01-10 | 1942-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-11 | 1946-01-10 | 1946-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-11 | 1950-01-10 | 1950-07-12 | $7700.00 | Window Closed / Lapsed |