US3362083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous apparatus for cooling pulverulent material
Assignee: National Gypsum Co
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Filing: 1967-07-07
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Granted: 1968-01-09
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Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Richard E Galer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:30
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; B; B02; B02C; B02C11/00; B02C11/08
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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |