US2423286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Profile generating mechanism
Assignee: Individual
•
Filing: 1941-06-09
•
Granted: 1947-07-01
•
Expires: 1961-06-09
Abstract
No abstract record available.
Inventors
- 👤 James H Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:01
CPC Classifications
B; B23; B23F; B23F5/00; B23F5/12; B23F5/14; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/106519; Y10T409/107155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE99408C
Cited
US1790560A
Cited
US886398A
Cited
US1724169A
Cited
US1692520A
Cited
US2166020A
Cited
GB521001A
Cited
US2260918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |