Patent US3503833A successfully refreshed from Google Patents.
US3503833A
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Laminated panel construction and method of making same
Assignee: ROLAND O CARLSON
•
Filing: 1967-04-12
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Granted: 1970-03-31
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Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Roland O Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:19
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T156/1077; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T428/00; Y10T428/18; Y10T428/183; Y10T428/187; Y10T428/24; Y10T428/24752
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US96377A
Cited
US1594889A
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US2191070A
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US2139880A
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US2664835A
Cited
US2569831A
Cited
US2751946A
Cited
US2680319A
Cited
US3003205A
Cited
US3333384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |