US3285003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable structure
Assignee: Dunlop Rubber Co Ltd
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Filing: 1965-01-26
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Granted: 1966-11-15
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Martin Erwin Herbert Erhard
- 👤 Thomson Richard Noel
- 👤 Norbury Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:06
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/34; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0058; B64D; B64D33/00; B64D33/02; F; F02; F02C; F02C7/00; F02C7/04; F02C7/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN INFLATABLE DEVICE FOR DEFINING THE INTAKE CONTOUR SURROUNDING AN OPENING OR THE LIKE, COMPRISING: AN INFLATABLE ENVELOPE IN SURROUNDING RELATION WITH SAID OPENING AND EXPANDABLE TO A DIMENSION GREATER THAN SAID OPENING TO FORM A CONTOURED PROFILE INTAKE IN COMBINATION WITH SUCH OPENING, MEANS FOR RETAINING SAID ENVELOPE AT ITS INNER EDGE IN ADJACENT RELTION WITH THE EDGE OF SAID OPENING, CIRCUMFERENTIALLY EXPANDABLE MEANS DISPOSED WITHIN
Claim 2
Dependent Claim
67 words
AN INFLATABLE DEVICE FOR DEFINING THE INTAKE CONTOUR SURROUNDING AN OPENING OR THE LIKE, COMPRISING: AN INFLATABLE ENVELOPE IN SURROUNDING RELATION WITH SAID OPENING AND EXPANDABLE TO A DIMENSION GREATER THAN SAID OPENING TO FORM A CONTOURED PROFILE INTAKE IN COMBINATION WITH SUCH OPENING, MEANS FOR RETAINING SAID ENVELOPE AT ITS INNER EDGE IN ADJACENT RELTION WITH THE EDGE OF SAID OPENING, CIRCUMFERENTIALLY EXPANDABLE MEANS DISPOSED WITHIN
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |