US2507604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for water distribution over cooling coils
Assignee: Phillips Petroleum Co
•
Filing: 1945-08-06
•
Granted: 1950-05-16
•
Expires: 1965-08-06
Abstract
No abstract record available.
Inventors
- 👤 Shelby D Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:07
CPC Classifications
F; F28; F28D; F28D3/00; F28D3/04; Y; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/123; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US90242A
Cited
US1565407A
Cited
US1583195A
Cited
US1628487A
Cited
US1829744A
Cited
US2247514A
Cited
US2369264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |