Patent US3461191A successfully refreshed from Google Patents.
US3461191A
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US
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Elastic insulating bodies of inorganic fiber material and method of producing such bodies
Assignee: Protex Corp Ltd
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Filing: 1965-09-17
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Granted: 1969-08-12
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph David Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:08
CPC Classifications
C; C04; C04B; C04B30/00; C04B30/02; C08; C08J; C08J9/00; C08J9/0085; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12; C08L; C08L101/00; C08L61/00; C08L61/20; C08L61/26; C08L61/28; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3338994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |