US1832571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound absorbing material
Assignee: Johns Manville Corp
•
Filing: 1929-06-11
•
Granted: 1931-11-17
•
Expires: 1949-06-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:11
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B2001/8457; E04B2001/8461; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24413; Y10T428/24421; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/116; Y10T442/121
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-11-16 | 1935-05-18 | 1935-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-16 | 1939-05-18 | 1939-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-16 | 1943-05-18 | 1943-11-17 | $7700.00 | Window Closed / Lapsed |