US2929446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1957-12-30
•
Granted: 1960-03-22
•
Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 Herman J Kuehnlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:47
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/232; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1798694A
Cited
US2403565A
Cited
US2389863A
Cited
US2595167A
Cited
US2540419A
Cited
US2568130A
Cited
US2810941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |