US3398487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swinging door construction
Assignee: Individual
•
Filing: 1966-09-16
•
Granted: 1968-08-27
•
Expires: 1986-09-16
Abstract
No abstract record available.
Inventors
- 👤 Matyas John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:48
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/02; E05F1/04; E05F1/06; E05F1/061; E05F1/063; E06; E06B; E06B3/00; E06B3/70; E06B3/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2920340A
Cited
US3083402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |