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US3513643A
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Assignee: Dollinger Corp
•
Filing: 1968-05-21
•
Granted: 1970-05-26
•
Expires: 1988-05-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Tarala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:16
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/0027; B01D46/0036; B01D46/52; B01D46/521; B01D2275/00; B01D2275/10
Claims Analysis
Total Claims: 0
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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) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |