US2846868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal door frames
Assignee: Individual
•
Filing: 1953-06-10
•
Granted: 1958-08-12
•
Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Wedberg Axel Gustaf Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:03
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/56; E06B1/60; E06B1/6015; E06B1/6038
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1085605A
Cited
US1361586A
Cited
US1600981A
Cited
US1654293A
Cited
US1747415A
Cited
US1985150A
Cited
GB454156A
Cited
US2499278A
Cited
US2652907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |