US2929152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drying or heating granular material
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1956-07-23
•
Granted: 1960-03-22
•
Expires: 1976-07-23
Abstract
No abstract record available.
Inventors
- 👤 Berner Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:06
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; F26B3/082; C; C01; C01B; C01B11/00; C01B11/16; C01B11/18; C01B11/185; F26B17/00; F26B17/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB189910204A
Cited
US957232A
Cited
US1005516A
Cited
US1538192A
Cited
US1857618A
Cited
US2461134A
Cited
US2501487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |