Patent US3230375A successfully refreshed from Google Patents.
US3230375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated radiation resistant panels
Assignee: Individual
•
Filing: 1961-12-04
•
Granted: 1966-01-18
•
Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Mark B Van Wagoner
- 👤 Testaguzza Gino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:27
CPC Classifications
G; G21; G21F; G21F1/00; G21F1/02; G21F1/10; G21F1/103; G21F1/12; G21F1/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A RADIATION RESISTANT PANEL COMPRISING A SURFACE LAYER OF UNIFORM THICKNESS INCLUDING IN COMBINATION BY WEIGHT APPROXIMATELY 40-PERCENT EPOXY RESIN; 40-PERCENT FINE SAND, AND 20-PERCENT ASBESTOS CEMENT; AND ADHESIVELY JOINED TO SAID SURFACE LAYER A LAYER OF FIBERGLASS FABRIC IMPREGNATED BY WEIGHT APPROXIMATELY WITH 16-PERCENT EPOXY RESIN, 16-PERCENT FINE SAND, 8-PERCENT ASBESTOS CEMENT AND 60-PERCENT POWDERED LEAD.
Claim 2
Dependent Claim
57 words
A RADIATION RESISTANT PANEL COMPRISING A SURFACE LAYER OF UNIFORM THICKNESS INCLUDING IN COMBINATION BY WEIGHT APPROXIMATELY 40-PERCENT EPOXY RESIN; 40-PERCENT FINE SAND, AND 20-PERCENT ASBESTOS CEMENT; AND ADHESIVELY JOINED TO SAID SURFACE LAYER A LAYER OF FIBERGLASS FABRIC IMPREGNATED BY WEIGHT APPROXIMATELY WITH 16-PERCENT EPOXY RESIN, 16-PERCENT FINE SAND, 8-PERCENT ASBESTOS CEMENT AND 60-PERCENT POWDERED LEAD.
References Cited (Backward Citations)
US2569539A
Cited
US2608500A
Cited
US2480298A
Cited
US2726339A
Cited
US2773459A
Cited
US2850890A
Cited
US2858451A
Cited
US2938937A
Cited
US2788291A
Cited
US3007890A
Cited
US3061491A
Cited
US3065351A
Cited
US3075925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |