US2066988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cork insulation
Assignee: Armstrong World Industries Inc
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Filing: 1935-04-06
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Granted: 1937-01-05
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Expires: 1955-04-06
Abstract
No abstract record available.
Inventors
- 👤 Louis R Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:57
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/16; B; B27; B27K; B27K1/00; B27K3/00; B27K3/02; B27K3/0207; B27K3/0278; B27K5/00; B27K5/001; B27K5/007; B27K7/00; B27K2240/00; B27K2240/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-01-05 | 1940-07-06 | 1941-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-05 | 1944-07-06 | 1945-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-05 | 1948-07-06 | 1949-01-05 | $7700.00 | Window Closed / Lapsed |