Patent US2847959A successfully refreshed from Google Patents.
US2742931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De ganahl
Assignee: —
•
Filing: —
•
Granted: 1956-04-24
•
Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:11
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/081; F16L11/083; Y; Y10; Y10S; Y10S273/00; Y10S273/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1242903A
Cited
US2206059A
Cited
US2390039A
Cited
US2467999A
Cited
US2476817A
Cited
US2552599A
Cited
US2614058A
Cited
US2594693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |