US2678666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable plug bag for testing plumbing
Assignee: Individual
•
Filing: 1949-08-08
•
Granted: 1954-05-18
•
Expires: 1969-08-08
Abstract
No abstract record available.
Inventors
- 👤 Harold T Theis
- 👤 Walter C Theis
- 👤 Arthur J Theis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:54
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US628726A
Cited
US1048208A
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US1337707A
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US1240433A
Cited
US1549962A
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US1795848A
Cited
US1842652A
Cited
US1946138A
Cited
US2476817A
Cited
US2474047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |