US3086899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constructional lamina
Assignee: Dow Chemical Co
•
Filing: 1956-05-04
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Granted: 1963-04-23
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Expires: 1976-05-04
Abstract
No abstract record available.
Inventors
- 👤 Cornelius P Smith
- 👤 Robert B Ingraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:13
CPC Classifications
B; B32; B32B; B32B27/00; E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/3405; E04C2002/3411; E04C2002/3422; E04C2002/3472; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24479; Y10T428/24496; Y10T428/2457; Y10T428/24628; Y10T428/24661; Y10T428/24669; Y10T428/24694
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A STRUCTURE COMPRISING, IN ASSEMBLED, FLATLY ADJACENT CONTACT, A LIKE PAIR OF INDENTED SHEETS, EACH SHEET HAVING A PLURALITY OF IDENTICAL, OPEN CUP-LIKE DEPRESSIONS PROJECTING FROM THE BACK AND AWAY FROM THE FACE OF THE SHEET, SAID DEPRESSIONS BEING DISPOSED RELATIVE TO ONE ANOTHER IN SQUARE ARRANGEMENT AND BEING PATTERNED IN MATCHING ALIGNMENT IN EACH OF SAID PLURALITY OF REGULARLY SPACED, PARALLEL ROWS THAT EXTEND NORMALLY IN BOTH DIRECTTIONS IN EACH OF SAID SHEETS, THE SHEETS IN SAID STRUCTURE BEING INTERFACIALLY ASSEMBLED WITH THE MATCHING DEPRESSIONS IN EACH SHEET FACING ONE ANOTHER IN ABUTTING, TOTALLY COMMUNICATING RELATIONSHIP TO PROVIDE A MULTIPLICITY OF CLOSED, ADJACENT, DISCONTINUOUS CELLS IN THE STRUCTURE, WHEREIN THE PAIR OF SHEETS IS ASSEMBLED IN A FLATLY ADJACENT, BACK-TO-BACK MANNER WITH CONTIGUOUS MATCHING DEPRESSIONS EXTENDING BETWEEN ONE ANOTHER IN AN INTERDIGITATING RELATIONSHIP.
Claim 2
Dependent Claim
134 words
A STRUCTURE COMPRISING, IN ASSEMBLED, FLATLY ADJACENT CONTACT, A LIKE PAIR OF INDENTED SHEETS, EACH SHEET HAVING A PLURALITY OF IDENTICAL, OPEN CUP-LIKE DEPRESSIONS PROJECTING FROM THE BACK AND AWAY FROM THE FACE OF THE SHEET, SAID DEPRESSIONS BEING DISPOSED RELATIVE TO ONE ANOTHER IN SQUARE ARRANGEMENT AND BEING PATTERNED IN MATCHING ALIGNMENT IN EACH OF SAID PLURALITY OF REGULARLY SPACED, PARALLEL ROWS THAT EXTEND NORMALLY IN BOTH DIRECTTIONS IN EACH OF SAID SHEETS, THE SHEETS IN SAID STRUCTURE BEING INTERFACIALLY ASSEMBLED WITH THE MATCHING DEPRESSIONS IN EACH SHEET FACING ONE ANOTHER IN ABUTTING, TOTALLY COMMUNICATING RELATIONSHIP TO PROVIDE A MULTIPLICITY OF CLOSED, ADJACENT, DISCONTINUOUS CELLS IN THE STRUCTURE, WHEREIN THE PAIR OF SHEETS IS ASSEMBLED IN A FLATLY ADJACENT, BACK-TO-BACK MANNER WITH CONTIGUOUS MATCHING DEPRESSIONS EXTENDING BETWEEN ONE ANOTHER IN AN INTERDIGITATING RELATIONSHIP.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |