US3307318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam plastic filler method
Assignee: Dow Chemical Co
•
Filing: 1964-02-27
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Granted: 1967-03-07
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 William C Bauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:09
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; Y; Y10; Y10S; Y10S206/00; Y10S206/813; Y10S220/00; Y10S220/902; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD FOR FILLING A SPACE IN A WALL STRUCTURE FORMED OF SPACED WALLS WITH SYNTHETIC PLASTIC FOAM COMPRISING THE STEPS OF PLACING A SEALED VAPOR IMPERMEABLE PLASTIC BAG CONTAINING SYNTHETIC PLASTIC FOAM IN A COMPRESSED STATE BY REASON OF ATMOSPHERIC PRESSURE ON SAID BAG INTO SAID WALL STRUCTURE, SAID BAG BEING SUBSTANTIALLY LARGER THAN SAID FOAM AND SUBSEQUENTLY PUNCTURING SAID BAG WITH A SHARP OBJECT TO PERMIT RE-EXPANSION OF SAID FOAM, OF ITS OWN VOLITION, WHEREBY SAID WALL STRUCTURE IS FILLED WITH FOAM.
Claim 2
Independent Claim
84 words
A METHOD FOR FILLING A SPACE IN A WALL STRUCTURE FORMED OF SPACED WALLS WITH SYNTHETIC PLASTIC FOAM COMPRISING THE STEPS OF PLACING A SEALED VAPOR IMPERMEABLE PLASTIC BAG CONTAINING SYNTHETIC PLASTIC FOAM IN A COMPRESSED STATE BY REASON OF ATMOSPHERIC PRESSURE ON SAID BAG INTO SAID WALL STRUCTURE, SAID BAG BEING SUBSTANTIALLY LARGER THAN SAID FOAM AND SUBSEQUENTLY PUNCTURING SAID BAG WITH A SHARP OBJECT TO PERMIT RE-EXPANSION OF SAID FOAM, OF ITS OWN VOLITION, WHEREBY SAID WALL STRUCTURE IS FILLED WITH FOAM.
References Cited (Backward Citations)
US1942162A
Cited
US2106840A
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US2226617A
Cited
US2613862A
Cited
US2551751A
Cited
US2971616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |