US2444572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating tubes
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1945-02-03
•
Granted: 1948-07-06
•
Expires: 1965-02-03
Abstract
No abstract record available.
Inventors
- 👤 Leet Harold Adelbert
- 👤 Sectish Charles Wasko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/88; H01J2229/00; H01J2229/88; H01J2229/882; Y; Y10; Y10S; Y10S118/00; Y10S118/03; Y10S118/10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2096416A
Cited
US2077378A
Cited
US2151649A
Cited
US2317977A
Cited
US2375482A
Cited
US2303290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |