Patent US2610369A successfully refreshed from Google Patents.
US2610369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door construction
Assignee: Kawneer Co Inc
•
Filing: 1949-06-10
•
Granted: 1952-09-16
•
Expires: 1969-06-10
Abstract
No abstract record available.
Inventors
- 👤 Charles B Huizenga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:47
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/5409
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) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |