US1352571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming pipe-joints
Assignee: WYATT ENGINEERING Co
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Filing: 1918-12-23
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Granted: 1920-09-14
•
Expires: 1938-12-23
Abstract
No abstract record available.
Inventors
- 👤 De Witt H Wyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:01
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/10; F16L13/11
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) | 1923-09-14 | 1924-03-15 | 1924-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-09-14 | 1928-03-15 | 1928-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-09-14 | 1932-03-15 | 1932-09-14 | $7700.00 | Window Closed / Lapsed |