Patent US2767443A successfully refreshed from Google Patents.
US2767443A
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US
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Window frames
Assignee: Pag Presswerk AG
•
Filing: 1950-09-25
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Granted: 1956-10-23
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Expires: 1970-09-25
Abstract
No abstract record available.
Inventors
- 👤 Hobein Herbert
- 👤 Barth Wilhelm
- 👤 Joachim W Crumbiegel
- 👤 Klein Wilhelm
- 👤 Nothelfer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:21
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/20; E06B3/22
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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |