Patent FR495633A successfully refreshed from Google Patents.
US3540992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined masking and electroplating tips
Assignee: RALPH E BELKE
•
Filing: 1967-02-16
•
Granted: 1970-11-17
•
Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Belke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:28
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/06; C25D17/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2512554A
Cited
US3035999A
Cited
US3042605A
Cited
US3294668A
Cited
US3314877A
Cited
US3347771A
Cited
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 |