US2615115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space-heating means
Assignee: ThyssenKrupp Budd Co
•
Filing: 1949-09-30
•
Granted: 1952-10-21
•
Expires: 1969-09-30
Abstract
No abstract record available.
Inventors
- 👤 Watter Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:22
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; F24D13/024; B; B61; B61D; B61D27/00; B61D27/0036; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21474E
Cited
US1911747A
Cited
US725663A
Cited
US1271494A
Cited
GB118300A
Cited
US1577434A
Cited
US2165970A
Cited
GB489424A
Cited
US2172771A
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US2179873A
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US2251682A
Cited
US2239957A
Cited
US2314766A
Cited
US2382340A
Cited
US2411677A
Cited
GB607152A
Cited
US2466085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |