US2824757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe suspension and sealing means with means to limit compression of the seal
Assignee: GEORGE A BUTLER
•
Filing: 1955-04-04
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Granted: 1958-02-25
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Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Allen F Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/0422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857101A
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US2610689A
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US2617485A
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US2683046A
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US2683045A
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US2689139A
Cited
US2683047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |