US3091262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-fiber reinforced resin laminate
Assignee: Darworth Inc
•
Filing: 1957-08-19
•
Granted: 1963-05-28
•
Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Donaldson Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:33
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/16; Y; Y10; Y10S; Y10S273/00; Y10S273/07; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249941
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A RIGID, WALLED TUBE COMPRISING A PLURALITY OF LAMINATIONS, AT LEAST ONE OF WHICH EMBODIES A METAL FOIL STRIP HAVING ADHERED THERETO INDIVIDUAL STRANDS OF FIBERGLASS, ALL OF WHICH STRANDS ARE UNIDIRECTIONAL AND IN CLOSELY SPACED PARALLEL RELATION TO ONE ANOTHER, AND A CURED THERMOSETTING RESIN PERMANENTLY BONDING SAID UNIDIREC-
Claim 2
Dependent Claim
50 words
A RIGID, WALLED TUBE COMPRISING A PLURALITY OF LAMINATIONS, AT LEAST ONE OF WHICH EMBODIES A METAL FOIL STRIP HAVING ADHERED THERETO INDIVIDUAL STRANDS OF FIBERGLASS, ALL OF WHICH STRANDS ARE UNIDIRECTIONAL AND IN CLOSELY SPACED PARALLEL RELATION TO ONE ANOTHER, AND A CURED THERMOSETTING RESIN PERMANENTLY BONDING SAID UNIDIREC-
References Cited (Backward Citations)
US2047778A
Cited
US2354556A
Cited
US2653887A
Cited
US2605202A
Cited
US2750314A
Cited
US2723705A
Cited
US2698991A
Cited
US2805974A
Cited
US2884010A
Cited
US2766920A
Cited
US2783173A
Cited
US2858854A
Cited
FR1142436A
Cited
US2952579A
Cited
US2932597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |