US2705350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windows
Assignee: PROTEX WEATHERSTRIP Manufacturing CO
•
Filing: 1952-03-17
•
Granted: 1955-04-05
•
Expires: 1972-03-17
Abstract
No abstract record available.
Inventors
- 👤 John C West
- 👤 Christensen Olaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:50
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B3/54; E06B3/58; E06B3/5878
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908394A
Cited
US1404025A
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US1929692A
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US2023047A
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US1987757A
Cited
US2081722A
Cited
US2187078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |