US1234091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus for bituminous materials.
Assignee: BARBER ASPHALT PAVING Co
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Filing: 1913-04-14
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Granted: 1917-07-17
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Expires: 1933-04-14
Abstract
No abstract record available.
Inventors
- 👤 Allan J Aitken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:49
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/10; C10C3/12
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) | 1920-07-16 | 1921-01-15 | 1921-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-07-16 | 1925-01-15 | 1925-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-07-16 | 1929-01-15 | 1929-07-17 | $7700.00 | Window Closed / Lapsed |