US3013397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perimeter heat transfer system for buildings
Assignee: Individual
•
Filing: 1960-06-14
•
Granted: 1961-12-19
•
Expires: 1980-06-14
Abstract
No abstract record available.
Inventors
- 👤 Meckler Gershon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:30
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/36; F; F24; F24F; F24F5/00; F24F5/0042; F24F5/0089
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1888900A
Cited
US2523332A
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US2534148A
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US2677749A
Cited
US2651503A
Cited
US2703702A
Cited
US2844638A
Cited
US2845253A
Cited
US2932954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |