Patent US2826799A successfully refreshed from Google Patents.
US2826799A
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Pipe coupling
Assignee: Individual
•
Filing: 1953-11-09
•
Granted: 1958-03-18
•
Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Edward H Schustack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:36
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/17; F16L55/172; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US172669A
Cited
US1468110A
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US1618234A
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US1596944A
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US2042263A
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US2175712A
Cited
US2222289A
Cited
US2599882A
Cited
US2713352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |