US3538847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a screen stencil
Assignee: Motors Liquidation Co
•
Filing: 1968-04-11
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Granted: 1970-11-10
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Expires: 1988-04-11
Abstract
No abstract record available.
Inventors
- 👤 David C Heilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:53
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0002; B; B41; B41C; B41C1/00; B41C1/14; G; G03; G03F; G03F7/00; G03F7/12; H05K2203/00; H05K2203/05; H05K2203/0548; H05K2203/0557; H05K3/10; H05K3/12; H05K3/1216; H05K3/1225
Claims Analysis
Total Claims: 0
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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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |