Patent EP0248117A2 successfully refreshed from Google Patents.
US3540587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for depositing particles
Assignee: WT ACQUISITION Inc
•
Filing: 1969-04-02
•
Granted: 1970-11-17
•
Expires: 1989-04-02
Abstract
No abstract record available.
Inventors
- 👤 Henry D Dawbarn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:33
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/086; B29C70/10; B29C70/16; B29C70/20; B29C70/202; D; D04; D04H; D04H3/00; D04H3/02; D04H3/04; B29K; B29K2023/00; B29K2023/10; B29K2023/12; B29K2223/00; B29K2223/04; B29K2223/06; B29K2223/10; B29K2223/12; B29L; B29L2031/00; B29L2031/14; B29L2031/73
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |