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US1967841A
Expired / Lapsed
US
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Bolted pipe joint
Assignee: United Gas Improvement Co
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Filing: 1933-07-24
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Granted: 1934-07-24
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Expires: 1953-07-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:47
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16L; F16L25/00; F16L25/02; F16L25/025; Y; Y10; Y10S; Y10S138/00; Y10S138/06; Y10S277/00; Y10S277/919
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) | 1937-07-23 | 1938-01-22 | 1938-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-07-23 | 1942-01-22 | 1942-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-07-23 | 1946-01-22 | 1946-07-24 | $7700.00 | Window Closed / Lapsed |