US3369947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating articles with polymerization or polyaddition reactionable systems
Assignee: Siemens AG
•
Filing: 1964-04-07
•
Granted: 1968-02-20
•
Expires: 1984-04-07
Abstract
No abstract record available.
Inventors
- 👤 Mertens Willi
- 👤 Meyer Hartmut
- 👤 Berger Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:12
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/12; B; B29; B29C; B29C63/00; H01; H01B; H01B13/00; H01B13/30; H01B3/00; H01B3/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |