US2427103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control
Assignee: Individual
•
Filing: 1945-04-06
•
Granted: 1947-09-09
•
Expires: 1965-04-06
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Hettinga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
B; B64; B64D; B64D31/00; B64D31/02; B64D31/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426; Y10T74/20576; Y10T74/20636; Y10T74/2066; Y10T74/20672; Y10T74/2069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR369960A
Cited
FR396859A
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FR412269A
Cited
US1006028A
Cited
US1187860A
Cited
US1764937A
Cited
US1900852A
Cited
US2114788A
Cited
US2205987A
Cited
US2240932A
Cited
US2373739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |