Patent US180996A successfully refreshed from Google Patents.
US180996A
Expired / Lapsed
US
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Improvement in machines for making composition roofing
Assignee: —
•
Filing: —
•
Granted: 1876-08-15
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Expires: 1893-08-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:57
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0053; B29C37/0057; E; E04; E04D; E04D15/00; E04D15/06; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727
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) | 1879-08-15 | 1880-02-14 | 1880-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-08-15 | 1884-02-14 | 1884-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-08-15 | 1888-02-14 | 1888-08-15 | $7700.00 | Window Closed / Lapsed |