US2657944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for tubular members
Assignee: Individual
•
Filing: 1949-06-17
•
Granted: 1953-11-03
•
Expires: 1969-06-17
Abstract
No abstract record available.
Inventors
- 👤 Miller Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
E; E01; E01B; E01B25/00; E01B25/08; E01B25/10; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/20; F; F16; F16B; F16B7/00; F16B7/04; F16B7/0406; F16B7/0413; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/557; Y10T403/70; Y10T403/7041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US281405A
Cited
US1024344A
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US1464982A
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US1678350A
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GB421871A
Cited
GB423783A
Cited
US2581032A
Cited
US2446924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |