US3049333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe line stopper
Assignee: Individual
•
Filing: 1958-10-09
•
Granted: 1962-08-14
•
Expires: 1978-10-09
Abstract
No abstract record available.
Inventors
- 👤 Paul C Wright
- 👤 Orval V Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:13
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/124; F16K; F16K3/00; F16K3/02; F16K3/16; F16K3/18; F16K3/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US948359A
Cited
US1233214A
Cited
US1431658A
Cited
GB259221A
Cited
US1624465A
Cited
US2198639A
Cited
US2285392A
Cited
US2655339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |