US3336632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the formation of walled structures
Assignee: Dow Chemical Co
•
Filing: 1966-03-04
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Granted: 1967-08-22
•
Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Hubert S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; Y; Y10; Y10S; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A FOAM DEPOSITING HEAD FOR THE SPIRAL GENERATION OF WALLED STRUCTURES, THE FOAM DEPOSITING HEAD COMPRISING IN COOPERATIVE COMBINATION A FRAME, THE FRAME SUPPORTING A FIRST PAIR OF SIDE ROLLS AND A SECOND PAIR OF SIDE ROLLS, THE ROLLS ROTATABLY MOUNTED IN GENERALLY PARALLEL RELATIONSHIP TO EACH OTHER, A FIRST FORMING BELT HAVING A FIRST EDGE AND A SECOND EDGE, THE FIRST EDGE OF THE FIRST FORMING BELT DEFINING A PLURALITY OF EDGE SEGMENTS PROJECTING OUTWARDLY THEREFROM AND BEING IN ADJACENT GENERALLY CONTIGUOUS ARRANGEMENT, THE FIRST EDGE OF THE FIRST FORMING BELT DISPOSED GENERALLY ADJACENT THE FRAME, THE FIRST FORMING BELT PASSSING OVER THE FIRST PAIR OF SIDE ROLLS, A SECOND SIDE FORMING BELT PASSING OVER AND BEING SUPPORTED BY THE SECOND SET OF SIDE ROLLS, THE SECOND SIDE FORMING BELT HAVING A FIRST EDGE AND A SECOND EDGE, THE SECOND SIDE BELT HAVING A FIRST EDGE AND
Claim 2
Dependent Claim
148 words
A FOAM DEPOSITING HEAD FOR THE SPIRAL GENERATION OF WALLED STRUCTURES, THE FOAM DEPOSITING HEAD COMPRISING IN COOPERATIVE COMBINATION A FRAME, THE FRAME SUPPORTING A FIRST PAIR OF SIDE ROLLS AND A SECOND PAIR OF SIDE ROLLS, THE ROLLS ROTATABLY MOUNTED IN GENERALLY PARALLEL RELATIONSHIP TO EACH OTHER, A FIRST FORMING BELT HAVING A FIRST EDGE AND A SECOND EDGE, THE FIRST EDGE OF THE FIRST FORMING BELT DEFINING A PLURALITY OF EDGE SEGMENTS PROJECTING OUTWARDLY THEREFROM AND BEING IN ADJACENT GENERALLY CONTIGUOUS ARRANGEMENT, THE FIRST EDGE OF THE FIRST FORMING BELT DISPOSED GENERALLY ADJACENT THE FRAME, THE FIRST FORMING BELT PASSSING OVER THE FIRST PAIR OF SIDE ROLLS, A SECOND SIDE FORMING BELT PASSING OVER AND BEING SUPPORTED BY THE SECOND SET OF SIDE ROLLS, THE SECOND SIDE FORMING BELT HAVING A FIRST EDGE AND A SECOND EDGE, THE SECOND SIDE BELT HAVING A FIRST EDGE AND
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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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |