US2933333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling
Assignee: Crane Co
•
Filing: 1955-09-26
•
Granted: 1960-04-19
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Kurt B Bredtschneider
- 👤 Jr Menke Drewes
- 👤 Hubert C Laird
- 👤 Frank M Onak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
F; F16; F16K; F16K1/00; F16L; F16L29/00; F16L29/005; F16L55/00; F16L55/10; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1759; Y10T137/1767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191504075A
Cited
US1664796A
Cited
US1933117A
Cited
US2059629A
Cited
US2507379A
Cited
US2759743A
Cited
US2667760A
Cited
GB693636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |