Patent DE3936703C2 successfully refreshed from Google Patents.
US2475635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple conduit
Assignee: Individual
•
Filing: 1945-01-08
•
Granted: 1949-07-12
•
Expires: 1965-01-08
Abstract
No abstract record available.
Inventors
- 👤 Elmer C Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:14
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US140165A
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US353680A
Cited
US412255A
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US417992A
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US1160703A
Cited
US1481255A
Cited
US1521482A
Cited
US1909075A
Cited
FR679867A
Cited
US1977987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |