Patent US2938670A successfully refreshed from Google Patents.
US3137342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat radiator
Assignee: Astro Dynamics Inc
•
Filing: 1961-05-24
•
Granted: 1964-06-16
•
Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Katz Leonhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/641
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A HEAT RADIATOR FOR A TRANSISTOR, COMPRISING A SINGLE PIECE OF METAL OF UNIFORM THICKNESS, SAID PIECE HAVING A FLAT, ELONGATED, RECTANGULAR BASE AND AT ONE SIDE OF SAID BASE, CENTRALLY THEREOF, A PAIR OF ARMS EXTENDING PERPENDICULARLY THEREFROM, SAID ARMS BEING JOINED ADJACENT SAID BASE AND BEING SPACED APART AWAY FROM SAID BASE, OPPOSED SURFACES OF SAID ARMS DEFINING A CYLINDRICAL OPENING EXTENDING FROM THE JUNCTION OF SAID ARMS WITH THE AXIS OF THE OPENING PARALLEL TO THE PLANE OF SAID BASE IN THE DIRECTION OF SAID THICKNESS, SAID ARMS CONVERGING TO A GAP AT THE SIDE OF SAID OPENING REMOTE FROM SAID BASE, SAID ARMS HAVING A PLURALITY OF FINS EXTENDING OUTWARDLY THEREFROM PARALLEL TO SAID BASE, WHEREBY SAID BASE MAY BE MOUNTED UPON A CHASSIS AND A TRANSISTOR MAY BE INSERTED WITHIN SAID OPENING AND GRIPPED RESILIENTLY BY SAID ARMS.
Claim 2
Dependent Claim
143 words
A HEAT RADIATOR FOR A TRANSISTOR, COMPRISING A SINGLE PIECE OF METAL OF UNIFORM THICKNESS, SAID PIECE HAVING A FLAT, ELONGATED, RECTANGULAR BASE AND AT ONE SIDE OF SAID BASE, CENTRALLY THEREOF, A PAIR OF ARMS EXTENDING PERPENDICULARLY THEREFROM, SAID ARMS BEING JOINED ADJACENT SAID BASE AND BEING SPACED APART AWAY FROM SAID BASE, OPPOSED SURFACES OF SAID ARMS DEFINING A CYLINDRICAL OPENING EXTENDING FROM THE JUNCTION OF SAID ARMS WITH THE AXIS OF THE OPENING PARALLEL TO THE PLANE OF SAID BASE IN THE DIRECTION OF SAID THICKNESS, SAID ARMS CONVERGING TO A GAP AT THE SIDE OF SAID OPENING REMOTE FROM SAID BASE, SAID ARMS HAVING A PLURALITY OF FINS EXTENDING OUTWARDLY THEREFROM PARALLEL TO SAID BASE, WHEREBY SAID BASE MAY BE MOUNTED UPON A CHASSIS AND A TRANSISTOR MAY BE INSERTED WITHIN SAID OPENING AND GRIPPED RESILIENTLY BY SAID ARMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |