US1567556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon-envelope material and process of manufacturing the same
Assignee: B G Textilwerke G M B H
•
Filing: 1921-08-27
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Granted: 1925-12-29
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Expires: 1941-08-27
Abstract
No abstract record available.
Inventors
- 👤 Trenckmann Erich
- 👤 Trenckmann Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:15
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31844; Y10T442/00; Y10T442/30
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) | 1928-12-28 | 1929-06-29 | 1929-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-12-28 | 1933-06-29 | 1933-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-12-28 | 1937-06-29 | 1937-12-29 | $7700.00 | Window Closed / Lapsed |