US3003638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brine supply system for fluid treatment apparatus
Assignee: Union Tank Car Co
•
Filing: 1957-03-18
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Granted: 1961-10-10
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Kryzer
- 👤 Thomas W Techler
- 👤 Richard G Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:53
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; F; F22; F22D; F22D11/00
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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |