US3487625A
Expired / Lapsed
US
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Assignee: Saint Gobain Techniques Nouvelles SA
•
Filing: 1966-01-17
•
Granted: 1970-01-06
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 Jean-Claude Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:02
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/10; B01D46/12; B01D46/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2198190A
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GB565265A
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GB840570A
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US3026609A
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US3177637A
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FR1275496A
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US3158458A
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US3183286A
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US3164456A
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US3189179A
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US3144315A
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US3243942A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |