US3407111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigidizable structures and process
Assignee: General Mills Inc
•
Filing: 1963-10-29
•
Granted: 1968-10-22
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Albert F Reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:28
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/02; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08J2375/00; C08J2375/04; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/249993; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A RIGIDIZABLE STRUCTURE OF A PLIANT FOLDABLE MATERIAL HAVING AT LEAST A PORTION OF AT LEAST ONE OF THE SURFACES THEREOF COATED WITH A LAYER OF AN EXPANDABLE COMPOSITION CONSISTING ESSENTIALLY OF A ROOM TEMPERATURE STABLE POLYURETHANE PREPOLYMER, SAID PLIANT FOLDABLE MATERIAL HAVING BEEN FORMED INTO A SHAPE CAPABLE OF ASSUMING A HOLLOW, THREE DIMENSIONAL STRUCTURE ON BEING REGIDIZED, SAID EXPANDABLE COMPOSITION HAVING BEEN APPLIED AND DISTRIBUTED IN SUCH A MANNER TO THE PLIANT FOLABLE MATERIAL AS TO PROVIDE THE DESIRED HOLLOW, RIGIDIZED, THREE DIMENSIONAL STRUCTURE AFTER THE SAME HAS BEEN EXPANDED AND RIGIDIZED, AND SAID RIGIDIZABLE STRUCTURE BEING CAPABLE OF ASSUMING THE DESIRED HOLLOW, RIGIDIZED, THREE DIMENSIONAL STRUCTURE FIXED SOLELY BY THE
Claim 2
Dependent Claim
113 words
A RIGIDIZABLE STRUCTURE OF A PLIANT FOLDABLE MATERIAL HAVING AT LEAST A PORTION OF AT LEAST ONE OF THE SURFACES THEREOF COATED WITH A LAYER OF AN EXPANDABLE COMPOSITION CONSISTING ESSENTIALLY OF A ROOM TEMPERATURE STABLE POLYURETHANE PREPOLYMER, SAID PLIANT FOLDABLE MATERIAL HAVING BEEN FORMED INTO A SHAPE CAPABLE OF ASSUMING A HOLLOW, THREE DIMENSIONAL STRUCTURE ON BEING REGIDIZED, SAID EXPANDABLE COMPOSITION HAVING BEEN APPLIED AND DISTRIBUTED IN SUCH A MANNER TO THE PLIANT FOLABLE MATERIAL AS TO PROVIDE THE DESIRED HOLLOW, RIGIDIZED, THREE DIMENSIONAL STRUCTURE AFTER THE SAME HAS BEEN EXPANDED AND RIGIDIZED, AND SAID RIGIDIZABLE STRUCTURE BEING CAPABLE OF ASSUMING THE DESIRED HOLLOW, RIGIDIZED, THREE DIMENSIONAL STRUCTURE FIXED SOLELY BY THE
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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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |