US2471960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser
Assignee: Houdaille Hershey Corp
•
Filing: 1944-08-14
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Granted: 1949-05-31
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Expires: 1964-08-14
Abstract
No abstract record available.
Inventors
- 👤 Bernard C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:09
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/04; F28; F28D; F28D1/00; F28D1/02; F28D1/03; F28D1/0308; F28F; F28F3/00; F28F3/12; F25B2339/00; F25B2339/04; F25B2339/043; F25D; F25D23/00; F25D23/006; F28D21/00; F28D2021/0019; F28D2021/0068; F28D2021/007; F28F2210/00; F28F2210/02; F28F2210/10
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) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |