US1412134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permutation valve
Assignee: CHARLES B SILVERBERG
•
Filing: 1921-12-13
•
Granted: 1922-04-11
•
Expires: 1941-12-13
Abstract
No abstract record available.
Inventors
- 👤 Probstel Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:00
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R25/042; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8175; Y10T137/8192; Y10T137/8593; Y10T137/87917; Y10T137/88022; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/726; Y10T70/7305
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) | 1925-04-10 | 1925-10-10 | 1926-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-04-10 | 1929-10-10 | 1930-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-04-10 | 1933-10-10 | 1934-04-11 | $7700.00 | Window Closed / Lapsed |