US2918023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced, thermal insulating, condensation-proof and light admitting member
Assignee: Individual
•
Filing: 1955-01-27
•
Granted: 1959-12-22
•
Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Bruce H Bettcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:28
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/006; E; E04; E04D; E04D13/00; E04D13/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370974A
Cited
US1495948A
Cited
GB229450A
Cited
US2004894A
Cited
US2384157A
Cited
FR947077A
Cited
US2638187A
Cited
US2624978A
Cited
US2610593A
Cited
US2710335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |