US2855664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of machining honeycomb core
Assignee: Rohr Inc
•
Filing: 1955-12-21
•
Granted: 1958-10-14
•
Expires: 1975-12-21
Abstract
No abstract record available.
Inventors
- 👤 Charles G Griffith
- 👤 Jr Thomas A Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:24
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/08; B23Q3/086; B23C; B23C2228/00; B23C2228/25; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812; Y10T29/49826; Y10T29/49879; Y10T409/00; Y10T409/30; Y10T409/300056; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041; Y10T83/0414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1787513A
Cited
US2167215A
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US2280359A
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US2628417A
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US2654686A
Cited
US2586532A
Cited
US2731713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |