US2710175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange panel structure
Assignee: Burgess-Manning Co
•
Filing: 1952-02-18
•
Granted: 1955-06-07
•
Expires: 1972-02-18
Abstract
No abstract record available.
Inventors
- 👤 Albert T Jorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:16
CPC Classifications
F; F24; F24D; F24D3/00; F24D3/12; F24D3/16; F24D3/165; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US945682A
Cited
US1925417A
Cited
GB403899A
Cited
US2381030A
Cited
US2382340A
Cited
CH241602A
Cited
CH262731A
Cited
US2662746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |