US2840922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cooler
Assignee: Link Belt Co
•
Filing: 1956-07-18
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Granted: 1958-07-01
•
Expires: 1976-07-18
Abstract
No abstract record available.
Inventors
- 👤 Maurice J Erisman
- 👤 Norman L Francis
- 👤 Rudolph R Teichman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:24
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/18; F26; F26B; F26B11/00; F26B11/02; F26B11/028
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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |