US2646005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1949-02-07
•
Granted: 1953-07-21
•
Expires: 1969-02-07
Abstract
No abstract record available.
Inventors
- 👤 Harvey F Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:40
CPC Classifications
B; B61; B61B; B61B11/00; B61B11/002; B61B11/004; B61B11/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US339655A
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US438552A
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US444919A
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US900060A
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US980220A
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US1280011A
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US1615027A
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US1950521A
Cited
US2219515A
Cited
US2285636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |