Patent US3361591A successfully refreshed from Google Patents.
Patent US3377974A successfully refreshed from Google Patents.
US3377974A
Expired / Lapsed
US
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Compartmented buoyant materials
Assignee: Mellon Institute
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Filing: 1964-08-13
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Granted: 1968-04-16
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Expires: 1984-08-13
Abstract
No abstract record available.
Inventors
- 👤 Michael C Jaskowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:28
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/11; B63C9/115; A; A41; A41D; A41D31/00; A41D31/04; A41D31/06; A41D31/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A BUOYANT FIBROUS MATERIAL TO BE USED IN A VERTICAL CONFIGURATION AND BEING BUOYANT IN THE UNENCLOSED CONDITION COMPRISING A PLURALITY OF SIDE-BY-SIDE BATTS OF FIBER ONE ABOVE ANOTHER WITH THEIR MARGINAL EDGES OVERLAPPING, A WATERPROOF FILM BETWEEN AND SEPARATING THE OVERLAPPING EDGES, AND MEANS SECURING SAID MARGINAL EDGES AND SAID FILM TOGETHER.
Claim 2
Dependent Claim
53 words
A BUOYANT FIBROUS MATERIAL TO BE USED IN A VERTICAL CONFIGURATION AND BEING BUOYANT IN THE UNENCLOSED CONDITION COMPRISING A PLURALITY OF SIDE-BY-SIDE BATTS OF FIBER ONE ABOVE ANOTHER WITH THEIR MARGINAL EDGES OVERLAPPING, A WATERPROOF FILM BETWEEN AND SEPARATING THE OVERLAPPING EDGES, AND MEANS SECURING SAID MARGINAL EDGES AND SAID FILM TOGETHER.
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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |