US3133591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming and/or augmenting an energy wave
Assignee: N A HARDIN
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Filing: 1954-05-20
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Granted: 1964-05-19
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Expires: 1974-05-20
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Brandon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:34
CPC Classifications
F; F28; F28F; F28F27/00; F28F27/02; B; B01; B01J; B01J19/00; B01J19/08; B01J19/10; E; E21; E21B; E21B43/00; E21B43/003; E21B43/16; E21B43/24; E21B43/2401; F03; F03G; F03G7/00; F03G7/002; F17; F17D; F17D1/00; F17D1/08; F17D1/16; F17D1/18; F25; F25B; F25B9/00; F25B9/14; F25B9/145; F28F13/00; F28F13/06; F28F13/10; F02; F02G; F02G2243/00; F02G2243/30; F02G2243/50; F02G2243/52; F25B2309/00; F25B2309/14; F25B2309/1403; F28D; F28D15/00; F28D7/00; F28D7/16; F28D7/1615; Y; Y10; Y10S; Y10S116/00; Y10S116/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
THE PROCESS OF APPLYING ENERGY TO A FORMATION, COMPRISING; PLACING A HEAT EXCHANGER IN HEAT EXCHANGE RELATION WITH A FORMATION THROUGH A FLUID MEDIUM, APPLYING PRESSURE TO SAID FORMATION THROUGH SAID FLUID MEDIUM, PRODUCING PULSATIONS IN THE PRESSURE APPLIED TO THE MEDIUM, CAUSING INTERMITTENT OPERATION OF THE HEAT EXCHANGER IN A FIXED TIME RELATION TO THE PULSATIONS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |