US3676267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making cellular structures
Assignee: FMC Corp
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Filing: 1970-07-21
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Granted: 1972-07-11
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Expires: 1990-07-21
Abstract
Abstract Apparatus for making a cellular structure having a plurality of walls extending along intersecting planes and together providing abutting cells, such walls being connected at their locations of intersection by cruciform sections and formed by flexing portions of a slit web material into planes disposed at angles to the plane of the original web material.
Inventors
- 👤 Theodore H Fairbanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:29
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/146; B29; B29C; B29C67/00; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B3/00; B32B3/10; B32B3/12; B32B37/16; B32B37/20; B32B37/203; B32B2607/00; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1348; Y10T29/00; Y10T29/49; Y10T29/496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |