US2646996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Union
Assignee: Chiksan Co
•
Filing: 1948-10-09
•
Granted: 1953-07-28
•
Expires: 1968-10-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Parmesan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:14
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/02; F16L19/0212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE482357C
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US812642A
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DE489883C
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US1825825A
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US1968562A
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US2119331A
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US2318112A
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US2458817A
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US2489338A
Cited
US2493996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |