US2979298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanger assembly
Assignee: Individual
•
Filing: 1957-08-26
•
Granted: 1961-04-11
•
Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Paul A Kenyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/02; F16L3/04; F16L3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US541420A
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US936552A
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US1376284A
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US1366321A
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US1452993A
Cited
US1517515A
Cited
US1644899A
Cited
US1734356A
Cited
US1873039A
Cited
US2394518A
Cited
US2710435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |