US2585133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spraying particles of insulating material
Assignee: Individual
•
Filing: 1950-02-01
•
Granted: 1952-02-12
•
Expires: 1970-02-01
Abstract
No abstract record available.
Inventors
- 👤 James L Kempthorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:22
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; B; B05; B05B; B05B7/00; B05B7/14; B05B7/1481; B05B7/149; B05B7/1495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1997874A
Cited
US2255189A
Cited
US2372678A
Cited
US2370408A
Cited
US2496540A
Cited
US2501839A
Cited
US2433463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |