US2416570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force system
Assignee: Individual
•
Filing: 1942-12-02
•
Granted: 1947-02-25
•
Expires: 1962-12-02
Abstract
No abstract record available.
Inventors
- 👤 Roy F Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:59
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/02; G01F; G01F23/00; G01F23/0038; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/742; Y10T137/7722; Y10T137/7771; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/7812; Y10T137/7813; Y10T137/7822; Y10T137/7823; Y10T137/7826; Y10T137/7834; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/87056
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-24 | 1950-08-26 | 1951-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-24 | 1954-08-26 | 1955-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-24 | 1958-08-26 | 1959-02-25 | $7700.00 | Window Closed / Lapsed |