Patent US3547751A successfully refreshed from Google Patents.
US3547751A
Expired / Lapsed
US
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Honeycomb core made from sealed continuous thermoplastic sheets
Assignee: Individual
•
Filing: 1967-05-02
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Granted: 1970-12-15
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Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 Burton D Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:23
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0089; B29C; B29C49/00; B29C49/02; B29C49/06905; B29C49/0691; B32; B32B; B32B3/00; B32B3/10; B32B3/12; B29C49/42; B29C49/46; B29C2049/4602; B29C2049/4644; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24165; Y10T428/24628; Y10T428/24661; Y10T428/24744
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2474035A
Cited
US2477852A
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US2621138A
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US2739093A
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US2978006A
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US3011930A
Cited
US3415711A
Cited
US3349990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |