US2790207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of expanding honeycomb
Assignee: Hexcel Products Inc
•
Filing: 1952-11-10
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Granted: 1957-04-30
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Expires: 1972-11-10
Abstract
No abstract record available.
Inventors
- 👤 Roger C Steele
- 👤 Edwin L Rule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:51
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0089; B21; B21D; B21D47/00; B29C; B29C67/00; B31; B31D; B31D3/00; B31D3/02; B31D3/0292; Y; Y10; Y10S; Y10S165/00; Y10S165/907; Y10S264/00; Y10S264/66; Y10S493/00; Y10S493/966; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310437A
Cited
US1209308A
Cited
US1728471A
Cited
US2323862A
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US2484641A
Cited
US2670314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |