Patent US3419069A successfully refreshed from Google Patents.
US3419069A
Expired / Lapsed
US
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Heat transfer apparatus having flexible plastic tubular elements arranged in a braided configuration
Assignee: Ametek Inc
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Filing: 1967-04-28
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Granted: 1968-12-31
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Baker Thomas Bernard
- 👤 Levy Stanley Burton
- 👤 Ottolini Roland Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:18
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/0206; F28D1/0213; F28F; F28F21/00; F28F21/06; F28F21/062; F28F2210/00; F28F2210/10; F28F2255/00; F28F2255/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3315740A
Cited
US3363680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |