US3530930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer method and apparatus
Assignee: US Philips Corp
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Filing: 1968-08-22
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Granted: 1970-09-29
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Expires: 1988-08-22
Abstract
No abstract record available.
Inventors
- 👤 Reginald Charles Oldfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:50
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/54; C23C14/541; B; B01; B01J; B01J10/00; B01J10/02; B01J19/00; B01J19/26; C09; C09K; C09K5/00; C09K5/08; C09K5/10; C09K5/12; B01J2219/00; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/00768
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |