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 13:52
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.
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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 |