Patent US1645032A successfully refreshed from Google Patents.
US1645032A
Expired / Lapsed
US
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Box and pin coupling
Assignee: Guiberson Corp
•
Filing: 1926-06-14
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Granted: 1927-10-11
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Expires: 1946-06-14
Abstract
No abstract record available.
Inventors
- 👤 Robert A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:10
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/24; F16L37/244; F16L37/2445; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; Y; Y10; Y10T; Y10T403/00; Y10T403/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-10-10 | 1931-04-11 | 1931-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-10 | 1935-04-11 | 1935-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-10 | 1939-04-11 | 1939-10-11 | $7700.00 | Window Closed / Lapsed |