Patent US3189335A successfully refreshed from Google Patents.
US3189335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arched packing for cooling towers
Assignee: CUSTODIS-ECODYNE Inc
•
Filing: 1962-05-28
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Granted: 1965-06-15
•
Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Fuller
- 👤 Harley H Boober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:04
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/085; Y; Y10; Y10S; Y10S261/00; Y10S261/11
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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |