US1279935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety pipe-joint.
Assignee: W T SWEAT
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Filing: 1918-05-24
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Granted: 1918-09-24
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Expires: 1938-05-24
Abstract
No abstract record available.
Inventors
- 👤 John D Sweat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:53
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/082; F16L41/084; F16L37/00; F16L37/24; F16L37/244; F16L37/248; F16L41/12; F23; F23J; F23J13/00; F23J13/04; F23J2213/00; F23J2213/20; F23J2213/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1921-09-23 | 1922-03-25 | 1922-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-09-23 | 1926-03-25 | 1926-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-09-23 | 1930-03-25 | 1930-09-24 | $7700.00 | Window Closed / Lapsed |