US1799453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation-fluid-transmission device
Assignee: BLUNDON STEAM ECONOMIZER Inc L
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Filing: 1928-04-03
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Granted: 1931-04-07
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Expires: 1948-04-03
Abstract
No abstract record available.
Inventors
- 👤 John C Blundon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:09
CPC Classifications
F; F01; F01B; F01B25/00; F01B2250/00; F01B2250/009; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7303; Y10T137/7358; Y10T137/7368; Y10T137/7371; Y10T137/7378; Y10T137/7722; Y10T137/7781; Y10T137/7835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-04-06 | 1934-10-06 | 1935-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-04-06 | 1938-10-06 | 1939-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-04-06 | 1942-10-06 | 1943-04-07 | $7700.00 | Window Closed / Lapsed |