US3271114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal growth container
Assignee: AT&T Inc
•
Filing: 1964-06-15
•
Granted: 1966-09-06
•
Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest D Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:51
CPC Classifications
C; C30; C30B; C30B7/00; C30B7/10; B; B01; B01D; B01D9/00; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1584523A
Cited
US2453891A
Cited
US2895812A
Cited
US2862641A
Cited
US3057718A
Cited
US3201209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |