Patent US2855185A successfully refreshed from Google Patents.
US2855185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating of buildings
Assignee: Individual
•
Filing: 1953-06-08
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Granted: 1958-10-07
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Expires: 1973-06-08
Abstract
No abstract record available.
Inventors
- 👤 Runte Egon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:21
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/08; F24; F24D; F24D3/00; F24D3/12; F24D3/16; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0472; F28D1/0475; F28D1/0476; F24D2220/00; F24D2220/20; F24D2220/2009; F24D2220/2072; Y; Y02; Y02B; Y02B30/00; Y10; Y10S; Y10S165/00; Y10S165/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1911766A
Cited
GB366770A
Cited
US2044832A
Cited
US2375556A
Cited
US2523332A
Cited
US2568818A
Cited
US2651503A
Cited
US2651504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |