US3078461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dished, annular, radio frequency absorber and method of manufacture
Assignee: Individual
•
Filing: 1958-04-07
•
Granted: 1963-02-19
•
Expires: 1978-04-07
Abstract
No abstract record available.
Inventors
- 👤 Walter J Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:40
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/22; H01Q15/0006; H01Q15/0013; H01Q17/00; H01Q17/001; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49826; Y10T29/49861
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
A DISHED, RADIO FREQUENCY ABSORBER COMPRISING A UNITARY, SELF-SUPPORTING BODY OF DISHED, ANNULAR SHAPE, SAID BODY BEING FORMED OF A PLURALITY OF ALTERNATE, THIN, PARALLEL, FLEXIBLE, ASBESTOS TAPE RESISTORS OF SUBSTANTIAL DEPTH AND UNIFORM WIDTH AND RELATIVELY THICK, PARALLEL STRIPS OF SELF-SUPPORTING, DIELECTRIC, PLASTIC MATERIAL OF SUBSTANTIAL DEPTH, AND UNIFORM WIDTH, SAID TAPE RESISTORS
References Cited (Backward Citations)
DE890069C
Cited
US2511610A
Cited
US2610250A
Cited
US2724112A
Cited
US2736895A
Cited
US2822539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |