Patent US1905665A successfully refreshed from Google Patents.
US1905665A
Expired / Lapsed
US
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Method of producing couplings
Assignee: Weatherhead Co
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Filing: 1929-10-29
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Granted: 1933-04-25
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Expires: 1949-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert J Weatherhead
- 👤 Jr John D Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:58
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49446; Y10T408/00; Y10T408/03; Y10T408/89; Y10T408/899; Y10T408/905; Y10T408/906; Y10T408/9065
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) | 1936-04-24 | 1936-10-24 | 1937-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-04-24 | 1940-10-24 | 1941-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-04-24 | 1944-10-24 | 1945-04-25 | $7700.00 | Window Closed / Lapsed |