US3467540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing the adhesion of metal to a subsurface
Assignee: Siemag Siegener Maschinenbau GmbH
•
Filing: 1967-01-24
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Granted: 1969-09-16
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Expires: 1987-01-24
Abstract
No abstract record available.
Inventors
- 👤 Josef Schick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:55
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C17/00; C03C17/06; C03C17/10; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/2006; C23C18/2013; C23C18/2046; C23C18/2073; C23C18/208; C23C18/28; H; H05; H05K; H05K3/00; H05K3/38; H05K3/386; H05K3/387; H05K2203/00; H05K2203/07; H05K2203/0779; H05K2203/0786; H05K2203/0793
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |