US2760792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Divided and packed pipe coupling sleeve
Assignee: Individual
•
Filing: 1952-04-02
•
Granted: 1956-08-28
•
Expires: 1972-04-02
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Fons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:00
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US34888A
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US249766A
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US544943A
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US549594A
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US649916A
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US1659196A
Cited
US1637081A
Cited
US2127456A
Cited
US2417741A
Cited
US2463235A
Cited
US2437246A
Cited
US2426423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |