US2519148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for altering the temperature of granular material
Assignee: Individual
•
Filing: 1948-01-19
•
Granted: 1950-08-15
•
Expires: 1968-01-19
Abstract
No abstract record available.
Inventors
- 👤 Royal M Mcshea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:14
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/0007; B28C7/0023; Y; Y10; Y10S; Y10S165/00; Y10S165/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |