US2546266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making insulation batts and boards
Assignee: Individual
•
Filing: 1948-10-20
•
Granted: 1951-03-27
•
Expires: 1968-10-20
Abstract
No abstract record available.
Inventors
- 👤 William J Kropp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:08
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189817549A
Cited
US1336403A
Cited
US2356826A
Cited
US2295971A
Cited
US2341161A
Cited
US2366853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |