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US2613558A
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Assignee: Individual
•
Filing: 1947-10-14
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Granted: 1952-10-14
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Expires: 1967-10-14
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:10
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/0006; B23B2251/00; B23B2251/50; Y; Y10; Y10S; Y10S408/00; Y10S408/714; Y10T; Y10T408/00; Y10T408/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1279302A
Cited
US1414565A
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US1520382A
Cited
US1561463A
Cited
US2196827A
Cited
US2187221A
Cited
US2273258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |