Patent US3529310A successfully refreshed from Google Patents.
US3529310A
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Process to ventilate stuffings of cellular material and stuffing actuated with said process
Assignee: GIUSEPPE OLMO SUPERFLEXITE SpA
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Filing: 1968-04-04
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Granted: 1970-09-22
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Expires: 1988-04-04
Abstract
No abstract record available.
Inventors
- 👤 Giuseppe Olmo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:18
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/74; A47C21/00; A47C21/04; A47C21/042; A47C21/044; A47C21/046; A47C21/048; A47C27/00; A47C27/04; B; B68; B68G; B68G11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |