US3887450B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US3887450B1 - - Google Patents
Assignee: Dynachem Corp
•
Filing: 1972-12-14
•
Granted: 1983-06-28
•
Expires: 1992-12-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0076; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033; H05K2203/00; H05K2203/12; H05K2203/122; H05K2203/124; H05K3/02; H05K3/06; H05K3/061; H05K3/064; H05K3/38; H05K3/389; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/111; Y10S430/114; Y10S430/117; Y10S430/118
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) | 1986-06-27 | 1986-12-27 | 1987-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-27 | 1990-12-27 | 1991-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-27 | 1994-12-27 | 1995-06-28 | $7700.00 | Window Closed / Lapsed |