US3059537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent building element
Assignee: Individual
•
Filing: 1959-09-01
•
Granted: 1962-10-23
•
Expires: 1979-09-01
Abstract
No abstract record available.
Inventors
- 👤 Walli Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:04
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082; E04; E04C; E04C2/00; E04C2/54; E04C2/543
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189716535A
Cited
US717784A
Cited
US1341259A
Cited
US1652347A
Cited
US2653516A
Cited
US2828235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |