Patent US2551142A successfully refreshed from Google Patents.
US2551142A
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Apparatus for heating the human body without using any external power
Assignee: Individual
•
Filing: 1949-06-02
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Granted: 1951-05-01
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Expires: 1969-06-02
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Lessard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:48
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F2007/0001; A61F2007/0059; A61F2007/006; A61F2007/0061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US185962A
Cited
US400261A
Cited
US596171A
Cited
US912527A
Cited
GB191012564A
Cited
CH75337A
Cited
US1339510A
Cited
GB176552A
Cited
US1775704A
Cited
FR677600A
Cited
US2221822A
Cited
US2424502A
Cited
US2460269A
Cited
US2429234A
Cited
US2453364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |