US2222755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve stem molding means
Assignee: JENKINS BROS
•
Filing: 1937-05-12
•
Granted: 1940-11-26
•
Expires: 1957-05-12
Abstract
No abstract record available.
Inventors
- 👤 Frank H Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:01
CPC Classifications
F; F16; F16K; F16K13/00; Y; Y10; Y10S; Y10S152/00; Y10S152/07
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) | 1943-11-26 | 1944-05-27 | 1944-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-26 | 1948-05-27 | 1948-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-26 | 1952-05-27 | 1952-11-26 | $7700.00 | Window Closed / Lapsed |