US2529533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid plunger mechanism
Assignee: Midland Steel Products Co
•
Filing: 1945-12-03
•
Granted: 1950-11-14
•
Expires: 1965-12-03
Abstract
No abstract record available.
Inventors
- 👤 John R Almond
- 👤 William C Bosworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:41
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/005; F04B49/00; F04B49/22; F04B49/24; F04B49/243; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/10; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |