US3149265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damped electric circuit board
Assignee: Lord Manufacturing Co
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Filing: 1962-02-21
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Granted: 1964-09-15
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 Richard P Thorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:46
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0201; H05K1/0203; H05K1/0207; H05K1/021; H05K1/0271; H05K1/18; H05K1/182; H05K1/184; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0133; H05K2201/09; H05K2201/09209; H05K2201/0929; H05K2201/09309; H05K2201/10; H05K2201/10613; H05K2201/10954; H05K2201/10969; H05K2201/20; H05K2201/2045; H05K3/00; H05K3/30; H05K3/32; H05K3/325; H05K3/40; H05K3/4038; H05K3/4046; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A CIRCUIT COMPRISING A PLURALITY OF SHEETS OF STRUCTURAL MATERIAL WITH ADJACENT SHEETS BONDED TO OPPOSITE SIDES OF AN INTERVENING LAYER OF VISCOELASTIC MATERIAL OF HGH INTERNAL FRICTION AND LOW MODULUS OF ELASTICITY COMPARED TO THE STRUCTURAL MATERIAL, SAID STRUCTURAL SHEETS AND THE INTERMEDIATE VISCOELASTIC LAYER HAVING REGISTERING OPENINGS THEREIN, A TUBULAR LINING OF VISCOELASTIC MATERIAL EXTENDING THROUGH AND BONDED TO THE
Claim 2
Dependent Claim
62 words
A CIRCUIT COMPRISING A PLURALITY OF SHEETS OF STRUCTURAL MATERIAL WITH ADJACENT SHEETS BONDED TO OPPOSITE SIDES OF AN INTERVENING LAYER OF VISCOELASTIC MATERIAL OF HGH INTERNAL FRICTION AND LOW MODULUS OF ELASTICITY COMPARED TO THE STRUCTURAL MATERIAL, SAID STRUCTURAL SHEETS AND THE INTERMEDIATE VISCOELASTIC LAYER HAVING REGISTERING OPENINGS THEREIN, A TUBULAR LINING OF VISCOELASTIC MATERIAL EXTENDING THROUGH AND BONDED TO THE
References Cited (Backward Citations)
US2902628A
Cited
US3013186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |