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US2965343A
Expired / Lapsed
US
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Motor actuated pipe hanger and positioner
Assignee: Grinnell Corp
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Filing: 1959-04-13
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Granted: 1960-12-20
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Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Philip C Sherburne
- 👤 Zollinger Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:56
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/16; F16L3/20; F16L3/215; F16L3/217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2248730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |