US3580870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beaded injectable sealing composition
Assignee: McDonnell Douglas Corp
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Filing: 1968-12-06
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Granted: 1971-05-25
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Expires: 1988-12-06
Abstract
Abstract A SEALANT COMPOSITION INCLUDING A SEALANT MEDIUM CONTAINING SPECIFICALLY SIZED AND SHAPED PARTICLE TO IMPROVE THE COMPLETENESS OF SEALING AND GAPS AND SPACES THAT OCCUR BETWEEN A PAIR OF SEALABLE COMPONENTS DUE TO MANUFACTURING TOLERANCES, THE SEALANT COMPOSITION BEING INJECTED UNDER PRESSURE SO THAT SAID PARTICLES ARE AVAILABLE TO FILL THE GAPS AND SPACES BY A CLUSTERING FORMATION TO BLOCK THE ESCAPE PATHS OF THE SEALANT MEDIUM, WITHOUT INTERFERING WITH THE NORMAL PASSAGE PROVIDED FOR DISTRIBUTION OF THE SEALANT COMPOSITION.
Inventors
- 👤 Robert E Rosner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:51
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29C70/64; B29C45/00; B29C45/0001; C; C08; C08L; C08L81/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |